springboot多文件上传代码实例及解析

<dependencies>
    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.3.3</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
  </dependencies>

spring:
 servlet:
  multipart:
   max-file-size: 200MB #单个文件上传大小
   max-request-size: 600MB #连续上传文件大小

youku1327:
 file:
 root:
  path: "C:\\mydata\\generator\\version06\\" #存储路径

/**
 * @Author lsc
 * @Description <p> </p>
 * @Date 2019/10/2 20:58
 * @Version 1.0
 */
@RestController
public class FileUploadController {

  @Value("${youku1327.file.root.path}")
  private String fileRootPath;

  @PostMapping("/file/upload")
  public String fileUpload(@RequestParam("files")MultipartFile[] files){
    String filePath = "";
    // 多文件上传
    for (MultipartFile file : files){
      // 上传简单文件名
      String originalFilename = file.getOriginalFilename();
      // 存储路径
       filePath = new StringBuilder(fileRootPath)
          .append(System.currentTimeMillis())
          .append(originalFilename)
          .toString();
      try {
        // 保存文件
        file.transferTo(new File(filePath));
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
    return filePath;
  }
}

/**
 * @Author lsc
 * @Description <p> </p>
 * @Date 2019/10/2 20:54
 * @Version 1.0
 */
@SpringBootApplication
public class FileUploadApplication {
  public static void main(String[] args) {
    SpringApplication.run(FileUploadApplication.class,args);
  }
}